“I was the principal trombone player of the London Symphony Orchestra”.

“Excellent! We have a vacancy in our celestial symphony orchestra for a trombonist. Why don’t you turn up at the next rehearsal.”

So, when the time for the next rehearsal arrived our friend turned up with his heavenly trombone. As he took his seat God moved, in a mysterious way, to the podium and tapped his batton to bring the players to attention. Our friend turned to the angelic second trombonist (!) and whispered, “So, what’s God like as a conductor?”

“Oh, he’s O.K. most of the time, but occasionally he thinks he’s von Karajan.”